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习题练习:HL Topic A2.1 Origin of cells

 作者: admin 发布日期: 2025-01-24 21:48   总分: 8分  得分: _____________

答题人: 游客未登录  开始时间: 25年01月24日 10:38  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1. Why are fatty acids or phospholipids important in the formation of cellstm* s2 oto 7l9.w5ij5qln.kf s and theol.sm ow fjlqn.sk *t9 5275tiir components?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  2. What is the acronym offqg;mo+ r9r0y 0zo ic5 the organism from which Homo sapiens is believed to have originallq5f00o rz+imy; o gr9cy evolved?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  3. Which of the following a6y1fg5+qp hbdescribes the conditions on early, pre-biotic Earth?


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4#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
4. Viruses are said to be non x3:ci*wzw9 -ufyx:qp-living.List two reasons that viruses cannot be considered as li* ic:qpu9yw f x-:3wxzving organisms.
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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
5. Explain why RNA, rather thanvbm l-/-m:fz *s eq(pt DNA, likely to be the first genetic material in li svf/m--e:qm( tlz* bpving organisms.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
6. The Miller-Urey experiment produced orgj5 sp 94f3qlzoanic molecules in an atmosphere that, in 1952, was thought to have been like the atmosphere on earth prior to the evolution of life. In which way was the experiment’s model atmosphere different from today’s scientific undersl94f5oz j3 sqptanding of the atmosphere at the origin of life on earth?
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7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
7. Explain why the conditions on Earth today make tntj*dw+g0 1xyhe spontaneous formation of organic carbon compounds less likny*1 d+0tx jwgely compared to the conditions on Earth at the time of the origin of life.
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8#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
8. List the essential features that the first cells mu .j)f8+npy lsfst have possessed to be able to live and evolve into the life fpln+ fj )f8s.yorms that followed.
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